Ribbon type optical fiber connector

Abstract

On an optical connector plug main body 3 whose transverse section is a trapezoid, a groove 6 of rectangular transverse section is provided, at a bottom of which a plurality of alignment V grooves 7 are formed. In a plate member 9 of rectangular transverse section has a receiving groove 10 of also rectangular transverse section, the groove 10 being connected with the bottom of the plate member 9. An alignment sleeve 12 has an alignment groove 14 of wedge head shape. The plate member 9 is engaged with the groove 6 of the connector plug main body 3, and protrusions 11 of the plate member 9 is ultrasonic bonded into recesses 8 provided in the connector plug main body 3. A ribbon type optical fiber to which an adhesive is applied is inserted from the groove 6 to complete the connector plug. Thus assembled connector plugs are inserted in the state whose ends are faced with each other into the groove 14 of the alignment sleeve 12 to make the connection of the ribbon type optical fiber.

What is claimed is: 
     
       1. A ribbon type optical fiber connector comprising: an optical connector plug main body whose transverse section is a trapezoid having a groove of a rectangular transverse section on an upper face of the of the main body in a longitudinal direction, and in a longitudinal direction of a bottom of the groove having V-shaped grooves for aligning a plurality of optical fiber elements,   a plate member of a rectangular transverse section having a groove of a rectangular transverse section in a longitudinal direction of a bottom of the plate member into which a cover portion of the ribbon type optical fiber is inserted, the rectangular groove being connected with the bottom of the member at a slope thereof, and   an alignment sleeve, of rectangular transverse section, having a groove provided in a longitudinal direction with respect to the upper face of the alignment sleeve and into which the optical connector plug main body is pressedly put while contacting two inclined faces of the optical connector plug main body, one of the two inclined faces and the bottom face being made reference faces,   the plate member being engaged at its portion in the rectangular groove of the optical connector plug main body and bonded therewith, ends of the ribbon type optical fibers are inserted from one end of the rectangular groove of the plate member and the fibers of the ribbon type optical fiber being guided into the V-shaped grooves, thus assembling into an integral body, whereby two integral bodies thus assembled are engaged while being faced with each other at the respective end surfaces in the groove of the alignment sleeve.   
     
     
       2. A ribbon type optical fiber connector according to claim (1), wherein the end face of the assembled connector plug has inclination of more than eight degrees in the aligning direction of the optical fiber with respect to a right angle of an optical axis of the optical fiber, a transverse section thereof is formed with an arc and a central point of the arc is on an axis which is inclined more than eight degrees with respect to the optical axis of the optical fiber. 
     
     
       3. A ribbon type optical fiber connector according to claim (1), wherein a plurality of the alignment sleeves separated by slits are provided for a single member.